Which of the following terms cannot be used to characterize eukaryotic chromosomes?
a. bathed in cytoplasm
b. DNA plus proteins
c. condensed
d. "colored bodies"
e. duplicated
a. bathed in cytoplasm
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Insecticide resistance is an example of artificial selection
Indicate whether the statement is true or false.
Four of the following statements about fossils found on the island of Flores are true. Which one is the exception?
a. They are shorter than modern humans. b. They have very small brains. c. They are 200,000 years old. d. They have a heavy brow ridge. e. They are small.
Given the same total area, studies have shown that which of the following types of preserves would be most effective in maintaining metapopulations of endangered species?
1.a large habitat patch 2.several small habitat patches 3.clusters of separate preserves connected by corridors 4.All of these are equally effective.
Living cells maintain biochemical reactions far from equilibrium conditions. They do this by
constantly manipulating the concentrations of reactants and products. Why is it important that a state far from equilibrium be maintained? What will be an ideal response?